GmGRP-like gene confers Al tolerance in Arabidopsis

文献类型： 外文期刊

第一作者： Chen, Li

作者： Chen, Li;Cai, Yupeng;Liu, Xiujie;Guo, Chen;Yao, Weiwei;Hou, Wensheng;Chen, Li;Cai, Yupeng;Liu, Xiujie;Guo, Chen;Yao, Weiwei;Sun, Shi;Wu, Cunxiang;Jiang, Bingjun;Han, Tianfu;Hou, Wensheng

作者机构：

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2018 年 8 卷

页码：

收录情况： SCI

摘要： Aluminium (Al) toxicity restrains water and nutrient uptake and is toxic to plant roots, ultimately inhibiting crop production. Here, we isolated and characterized a soybean glycine-rich protein-like gene (GmGRPL) that is mainly expressed in the root and that is regulated by Al treatment. Overexpression of GmGRPL can alleviate Al-induced root growth inhibition in Arabidopsis. The levels of IAA and ethylene in GmGRPL-overexpressing hairy roots were lower than those in control and RNA interference-exposed GmGRPL hairy roots with or without Al stress, which were mainly regulated by TAA1 and ACO, respectively. In transgenic soybean hairy roots, the MDA, H2O2 and O-2(-center dot) content in GmGRPL-overexpressing hairy roots were less than that in control and RNA interference-exposed GmGRPL hairy roots under Al stress. In addition, IAA and ACC can enhance the expression level of the GmGRPL promoter with or without Al stress. These results indicated that GmGRPL can alleviate Al-induced root growth inhibition by regulating the level of IAA and ethylene and improving antioxidant activity.

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